A planet or moon that is the nearest the clicked position becomes an object.
Please click on the center of the planet.

Button operation (Depends on the iOS language)
-Zero-gravity The planet/moon floats on a weightless space.
-gravity Planet/moon like a ball in accordance with gravity.
-Stop The operation to a transverse direction stops.

Transparency settings (slider bar).
-ONE just before the planet is being tapped
-ALL planet and moons
-MIX Operate a slider bar to quickly, Change in transparency.
-12:00 Target clock

Other buttons
-12:00 Hide / lock / Unlock the operation of the clock
-:00 Show / Hide seconds
-NAME Show / Hide the planet name